Known vulnerabilities in Optin Forms – Simple List Building Plugin for WordPress

Create beautiful optin forms with ease. Choose a form design, customize it, and add your form to your blog with a simple mouse-click.

2Reported vulnerabilities

4.8Highest CVSS score

1.3.7.2Latest version

2,000+Active installs

What to do now

Update Optin Forms – Simple List Building Plugin for WordPress to 1.3.7 or later. 2 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 3, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2023-49841	Medium 4.8	0.4%	1.3.3 and earlier	`1.3.7`	December 14, 2023
CVE-2023-29434	Medium 4.8	0.4%	1.3.1 and earlier	`1.3.3`	June 26, 2023

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.